Ok, incentivising apartment living.
That's good as it should encourage density.
However site values are already massively higher in city centres and along transport routes, so to also pay higher property taxes is like getting stung twice.
Stung with high priced mortages to live near infastructure, then stung each year with higher property taxes. This will result in sprawl as people are lured by cheaper taxes on cheaper sites away from infastructure. This will have a negative impact on future services and for futher planning.
I propose that while it's already a given that those sites will cost more, but with a view to encouraging density we reward apartments and small home dwellers with cheaper property taxes.
It costs less per head to roll out infastructure in high density areas, compared to the price per head in rural areas.